A novel mechanism for macrophage pyroptosis in rheumatoid arthritis induced by Pol β deficiency.
A novel mechanism for macrophage pyroptosis in rheumatoid arthritis induced by Pol β deficiency.
复制标题
Pol β 缺乏引起的类风湿性关节炎巨噬细胞焦亡的新机制
DOI:
10.1038/s41419-022-05047-6
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发表时间:
2022-07-06
影响因子:
9
通讯作者:
Guo, Zhigang
中科院分区:
文献类型:
--
作者:
Gu, Lili;Sun, Yuling;Wu, Ting;Chen, Ge;Tang, Xiaojun;Zhao, Lianfeng;He, Lingfeng;Hu, Zhigang;Sun, Lingyun;Pan, Feiyan;Yin, Zhimin;Guo, Zhigang
Rheumatoid arthritis (RA) is a chronic and inflammatory autoimmune disease. Macrophage pyroptosis, a proinflammatory form of cell death, is critically important in RA; however, the detailed mechanism underlying pyroptosis induction is not yet well understood. Here, we report that DNA polymerase β (Pol β), a key enzyme in base excision repair, plays a pivotal role in RA pathogenesis. Our data shows that Pol β expression is significantly decreased in peripheral blood mononuclear cells (PBMCs) from active RA patients and collagen-induced arthritis (CIA) mice, and Pol β deficiency increases the incidence of RA, macrophage infiltration, and bone destruction in CIA mouse models. In vitro, experiments showed that Pol β deficiency exacerbated macrophage pyroptosis induced by LPS plus ATP, while overexpression of Pol β inhibited macrophage pyroptosis. Further characterization revealed that Pol β knockout resulted in DNA damage accumulation and cytosolic dsDNA leakage, which activated the cGAS-STING-NF-κB signaling pathway and upregulated the expression of NLRP3, IL-1 β, and IL-18. In conclusion, our findings clarify the influence of Pol β on the development of RA and provide a detailed explanation for the STING-NF-κB pathway to induce macrophage pyroptosis.
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影响因子:
8.8
作者:
Senejani AG;Liu Y;Kidane D;Maher SE;Zeiss CJ;Park HJ;Kashgarian M;McNiff JM;Zelterman D;Bothwell AL;Sweasy JB
通讯作者:
Sweasy JB
DOI:
10.18632/aging.104123
发表时间:
2020-11-20
期刊:
Aging
影响因子:
--
作者:
Hua K;Wang L;Sun J;Zhou N;Zhang Y;Ji F;Jing L;Yang Y;Xia W;Hu Z;Pan F;Chen X;Yao B;Guo Z
通讯作者:
Guo Z
影响因子:
16
作者:
Dunphy G;Flannery SM;Almine JF;Connolly DJ;Paulus C;Jønsson KL;Jakobsen MR;Nevels MM;Bowie AG;Unterholzner L
通讯作者:
Unterholzner L
DOI:
10.1007/978-1-60761-058-8_11
发表时间:
2010-01-01
期刊:
MOUSE MODELS FOR DRUG DISCOVERY: METHODS AND PROTOCOLS
影响因子:
--
作者:
Bevaart, Lisette;Vervoordeldonk, Margriet J.;Tak, Paul P.
通讯作者:
Tak, Paul P.
影响因子:
4.9
作者:
Choulaki C;Papadaki G;Repa A;Kampouraki E;Kambas K;Ritis K;Bertsias G;Boumpas DT;Sidiropoulos P
通讯作者:
Sidiropoulos P